How do I emulate the Home key on a mac laptop in Blender?
For the Home command, press down the Fn+Left Arrow or Fn+Shift+Left Arrow.

Home : Fn+Control+Left Arrow (Works exactly similar to Windows Home key) 

End : Fn+Control+Right Arrow

Page Up : Fn+Up Arrow 

Page Down : Fn+Down Arrow 

Essentially, all the buttons that would normally appear above the arrows on a  windows keyboard, are mimicked by using arrow keys with modifiers. 

I don't know why the other answers are talking about un-related number pad, which is another key group entirely.